使用vue實現一個沒有卡頓的動畫
> Tip:animation-play-state技術要點
```
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
<style>
.demo{
width:100px;
height: 100px;
background: pink;
animation: circle 5s linear infinite;
}
.running{
animation-play-state: running;
}
.paused{
animation-play-state:paused;
}
@keyframes circle{
0%{
transform: rotate(0deg)
}
50%{
transform: rotate(180deg)
}
100%{
transform: rotate(360deg);
}
}
</style>
</head>
<body>
<div id="app">
<div :class="['demo',isPlay?'running':'paused']" >
</div>
<button @click="handleClick" style="margin-top: 20px;">切換</button>
</div>
<script>
new Vue({
el:"#app",
data:{
isPlay:false
},
methods:{
handleClick(){
if(this.isPlay){
this.isPlay = false;
}else{
this.isPlay = true;
}
}
}
})
</script>
</body>
</html>
```
